Forum discussion

Pilot-Credits WEpc115:Whole Project Water Use Reduction

Baseline Calculation & AHU Condensate

The project is an industrial facility with it's own wastewater treatment system. 

1) Do we claim all the reused process water under Row82 Non-Potable Water Reuse (Other)? while the baseline column in the calculator is (N/A). 

2) Should captured AHU condensate be included as a water reduction? It has no impact on their calculator under On-Site sources unless it is included in the non-potable water reuse category.

 

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Tue, 07/23/2024 - 22:07

I have recently discovered this issue myself: that the AHU condensate (and other on-site sources) does not actually sum into the total of Reused Water in row 89.  I have also recently been manually adding it into my process water re-use/reclaim amount in row 82, so that it gets counted as a re-use stream to reduce the amount of potable water in the project.  I would like to get confirmation that this is the correct approach, as I won't be submitting this ACP in any projects soon.

Tue, 04/29/2025 - 21:49

I’ve noticed the same thing, and I’ve considered it in the same way. From what I’ve observed, the Non-potable Water Reused section reflects the total amount of alternative water that is actually used to meet the building’s end-use demands, regardless of its source. The important thing is to account only for the volume that is actually reused. The On-site Water Sources section should not directly impact that total, as there may be more available or captured alternative water than what is actually used. It seems to me that this section serves more as a reference to identify the sources of alternative water and confirm that they support the reused volume reported in the Non-potable Water Reused section. As with the water balance diagram, the information entered in these sections of the calculator should align with that diagram. If anyone else has looked into this or submitted a related inquiry, it would be helpful to hear about their case.

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